HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$325+ Cheap flights from San Juan to Barcelona

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BCN
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan to Barcelona with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from San Juan to Barcelona

Cheapest flights from San Juan to Barcelona
Explore the most affordable flight options available from San Juan to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This Gotogate deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:35 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Mon 8/173:40 pm
BCN
-
SJU
1 stop25h 45m
Avianca
Deal found 5/12$650
This FlightHub deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:30 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Thu 12/312:50 pm
BCN
-
SJU
1 stop33h 15m
Avianca
Deal found 5/16$656
This FlightHub deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:30 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Mon 11/3012:50 pm
BCN
-
SJU
1 stop27h 45m
Avianca
Deal found 5/13$657
This Avianca deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:30 pm
SJU
-
BCN
1 stop32h 10m
Avianca
Wed 11/1112:50 pm
BCN
-
SJU
1 stop27h 45m
Avianca
Deal found 5/12$682
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:00 am
SJU
-
BCN
2 stops30h 15m
United Airlines
Wed 10/2810:30 am
BCN
-
SJU
1 stop15h 52m
United Airlines
Deal found 5/13$690
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:55 pm
SJU
-
BCN
2 stops35h 25m
United Airlines
Fri 10/2312:15 pm
BCN
-
SJU
2 stops41h 35m
United Airlines
Deal found 5/13$694
This Iberia deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:30 am
SJU
-
BCN
1 stop17h 05m
Iberia
Fri 10/233:50 pm
BCN
-
SJU
1 stop25h 15m
Iberia
Deal found 5/13$697
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:00 am
SJU
-
BCN
1 stop26h 00m
United Airlines
Tue 10/2710:30 am
BCN
-
SJU
1 stop15h 52m
United Airlines
Deal found 5/15$699
This United Airlines deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:05 am
SJU
-
BCN
2 stops26h 30m
United Airlines
Wed 11/1110:30 am
BCN
-
SJU
1 stop16h 52m
United Airlines
Deal found 5/15$703
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:45 am
SJU
-
BCN
2 stops20h 15m
United Airlines
Wed 11/113:05 pm
BCN
-
SJU
2 stops28h 35m
United Airlines
Deal found 5/13$704
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/201:00 am
SJU
-
BCN
2 stops25h 00m
United Airlines
Fri 10/212:15 pm
BCN
-
SJU
2 stops41h 35m
United Airlines
Deal found 5/13$706
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:00 am
SJU
-
BCN
2 stops25h 00m
United Airlines
Tue 10/206:40 am
BCN
-
SJU
2 stops23h 10m
United Airlines
Deal found 5/13$707

Find flight deals from San Juan to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Barcelona (S37). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2026.

Round-trip from

$650
(Gotogate)

One-way from

$325
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$882
From San Juan to Barcelona
Search Deals
One-way flight from San Juan to Barcelona
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($244 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Barcelona that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from San Juan to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Wed 11/4

8:30 am-9:35 am

2 stops20h 05m

Barcelona-El Prat

Wed 11/11

10:30 am-10:22 pm

1 stop16h 52m

$703

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sun 10/11

4:55 pm-8:20 am

1 stop33h 25m

Barcelona-El Prat

Tue 10/20

8:00 am-11:50 pm

2 stops21h 50m

$750

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sat 10/24

6:45 pm-9:20 am

1 stop32h 35m

Barcelona-El Prat

Sat 11/7

9:55 am-12:36 am

2 stops19h 41m

$800

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Fri 9/4

1:25 pm-6:15 pm

2 stops22h 50m

Barcelona-El Prat

Wed 9/9

8:00 am-11:50 pm

2 stops21h 50m

$881

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Wed 10/21

1:00 am-8:00 am

2 stops25h 00m

Barcelona-El Prat

Sun 11/1

10:30 am-10:22 pm

1 stop16h 52m

$910

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Mon 7/6

7:40 am-1:15 pm

1 stop23h 35m

Barcelona-El Prat

Thu 7/16

11:15 am-9:24 pm

1 stop16h 09m

$921

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Tue 7/7

3:56 pm-1:15 pm

1 stop15h 19m

Barcelona-El Prat

Tue 7/14

7:55 am-9:24 pm

2 stops19h 29m

$927

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Sat 8/22

4:55 pm-8:20 am

1 stop33h 25m

Barcelona-El Prat

Tue 9/1

12:15 pm-11:50 pm

2 stops41h 35m

$944
Quickest round-trip

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Mon 7/6

1:25 pm-9:00 am

1 stop13h 35m

Barcelona-El Prat

Mon 7/13

7:55 am-9:24 pm

2 stops19h 29m

$973

San JuanBarcelona

SJU - BCN

SJUBCN

San Juan Luis Munoz Marin Intl

Wed 6/3

7:20 am-8:20 am

1 stop19h 00m

Barcelona-El Prat

Wed 6/17

12:00 pm-11:50 pm

1 stop17h 50m

$1,001

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from San Juan to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from San Juan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan to Barcelona

How far ahead should I book a flight from San Juan to Barcelona?

To ensure you get the cheapest price possible for a flight from San Juan to Barcelona, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Juan to Barcelona?

Currently, February is the cheapest month in which you can book a flight from San Juan to Barcelona (average of $294). Flying from San Juan to Barcelona in June is currently the most expensive (average of $718). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from San Juan to Barcelona?

How often are flights from San Juan to Barcelona delayed?

About 0% of weekly flights between San Juan and Barcelona have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for San Juan to Barcelona flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona. Reviews last updated May 16, 2026.
Get a feel of what it's like to fly with Delta,KLM, andUnited Airlines from San Juan to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Delta
7.9
Good
8,455 reviews
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
KLM
7.8
Good
1,517 reviews
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
United Airlines
7.4
Good
9,726 reviews
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
American Airlines
7.1
Good
11,662 reviews
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.
Iberia
7.0
Good
3,217 reviews
Delta
7.9
Good
8,455 reviews

Food

7.2

Comfort

7.8

Overall

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Kade,Sep 2023

LHR - SLC

It was weird that we had to check after security and go to a corral which had no bathroom or other services about an hour before boarding. Had to check out of the corral to leave and check back in.

Related info for your journey

Find useful and relevant information for your journey from San Juan to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Juan to Barcelona?

    United Airlines can get you from San Juan to Barcelona in just under 20h 05m. Your travel time can differ by up to . The distance between San Juan and Barcelona is about 4257 mi.

  • What are the cheapest airlines flying from San Juan to Barcelona round-trip?

    Delta, at $380, was found to be the cheapest airline from San Juan to Barcelona.Alternate airlines to your destination round-trip include United Airlines and KLM. Delta is 47% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Juan to Barcelona one-way?

    The cheapest airlines for a one-way flight from San Juan to Barcelona are British Airways ($217), Iberia ($293), and American Airlines ($305).

  • Where are the most common layover locations when flying from San Juan to Barcelona?

    The most popular layover on flights from San Juan to Barcelona is Paris. Atlanta follows Paris in terms of the most common layover location on San Juan to Barcelona flights. Madrid ranks third in terms of the most popular layover location on San Juan to Barcelona flights.

  • What are some popular things to do or see while on a layover in Paris?

    Eiffel Tower, Champs-Elysées, and Louvre Museum are currently the most popular points of interest in Paris at the moment. Eiffel Tower, Champs-Elysées, and Louvre Museum can be accessed by traveling approximately 15.8 mi, 14.7 mi, and 14.3 mi, respectively from Paris Charles de Gaulle. Travelers in need of a car in Paris can rent one for about $44 per day.

  • What are some popular points of interest to see during a layover in Atlanta?

    The majority of Atlanta visitors spend their time at Georgia Aquarium, Centennial Olympic Park, and Fox Theatre. Travelers on a layover in Atlanta can visit Georgia Aquarium, Centennial Olympic Park, and Fox Theatre, by traveling 8.6 mi, 8.4 mi, and 9.3 mi, respectively after landing at Atlanta Hartsfield-Jackson. Travelers can book a car rental at Atlanta Hartsfield-Jackson for about $60 per day to make their sightseeing more efficient.

  • What are points of interest worth seeing during a layover in Madrid?

    If you're on a layover in Madrid and looking for things to do, consider visiting Plaza Mayor, Puerta del Sol, or Spain Building. Plaza Mayor, Puerta del Sol, and Spain Building can be visited by traveling about 8.6 mi, 8.4 mi, and 8.5 mi respectively from Madrid Barajas. Travelers in need of a car in Madrid can rent one for about $33 per day.

  • Where are the least popular layover locations for San Juan to Barcelona flights?

    San Juan to Barcelona flights have a layover in New York the least frequently. Miami is the second least popular location for layovers on flights from San Juan to Barcelona.

  • Can I find deals for flights from San Juan to Barcelona that include hotel bookings?

    Yes. In addition to deals on San Juan to Barcelona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Barcelona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Barcelona.

  • Can I find deals for business class flights from San Juan to Barcelona?

    Yes. Cheapflights offers flight deals from San Juan to Barcelona by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to Barcelona?

    Currently, February is the cheapest month in which you can book a flight from San Juan to Barcelona (average of $294). Flying from San Juan to Barcelona in June is currently the most expensive (average of $718). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from San Juan to Barcelona

Discover the top 8 airlines that operate flights from San Juan to Barcelona. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$380Average$568FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$430Average$761FlexibilityNo cancel feeOn-time69%
KLMCheapest$460Average$781FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$460Average$697FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$496Average$926FlexibilityNo cancel feeOn-time71%
IberiaCheapest$523Average$854FlexibilityNo cancel feeOn-time77%
AviancaCheapest$589Average$725FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$747Average$951FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.